Please tell me your opinion regarding this math problem

Discussion in 'The War Room' started by tardzilla, Jan 19, 2015.

  1. tardzilla

    tardzilla Banned Banned

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  2. tardzilla

    tardzilla Banned Banned

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    Here is a response that was extremely well-received on another website:

     
  3. 7437

    7437 Gold Belt

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    i dunno how much opinion someone can really have on math. its.... math.
     
  4. footodors

    footodors Brown Belt Platinum Member

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    just a different style.
     
  5. spin

    spin Gold Belt

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    That guy can go "fuck" himself
     
  6. squeezewax

    squeezewax Black Belt

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    'S', it's maths, there is an 'S' in the word mathematics.
     
  7. Halge

    Halge Silver Belt

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    So, like, you make ten by adding two from the five, and then throw the remaining three away?
     
  8. tardzilla

    tardzilla Banned Banned

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    This approach to math is from Common Core, a federally standardized educational curriculum instituted by the Federal Government. Some states have rejected the funding (and Federal oversight), but most accepted the funding and resulting oversight.
     
  9. jmag

    jmag Brown Belt

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    The kid is right. The teacher is wrong.
     
  10. djacobox372

    djacobox372 Gold Belt

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    Strange that they're teaching this "make 10" strategy. When I was a kid that's something I came up with on my own and my teachers told me it was wrong, that I should solve math in as few of steps as possible... "making 10" is a wasted step that slows you down.

    I guess I was right and they were wrong.
     
  11. tardzilla

    tardzilla Banned Banned

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    Another quote in defense of the teacher:


    A bunch of Euros agreed with him, and it was a highly rated comment.
     
  12. Kadafi

    Kadafi ™️️ Yellow Card

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    Bahahahahahaha
     
  13. Anung Un Rama

    Anung Un Rama Idol of Millions Platinum Member

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    This is how I do math in my head, but you can't defend a terribly worded math question. The very verbiage of this line of math is silly.

    Can anybody provide an real life example of how somebody following this line of math is superior to old school math?
     
  14. Lord_Impaler

    Lord_Impaler Brown Belt

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    I would have to hear someone explain the benefit of this.

    At first glance, they just seem to be adding superfluous steps.
     
  15. NelmarksGhost

    NelmarksGhost Brown Belt

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    I have a degree in math, and remember coming across this joke in my undergrad years.

    How a math problem changed its look ...

    Variation #1:


    Up to the 1960's

    A peasant sells a bag of potatoes for $10.
    His costs amount to 4/5 of his selling price.
    What is his profit?

    In the early 1970's

    A farmer sells a bag of potatoes for $10.
    His costs amount to 4/5 of his selling price, i.e., $8.
    What is his profit?

    1970's (new math)

    A farmer exchanges a set P of potatoes with a set M of money.
    The cardinality of the set M is equal to $10 and each element of M is worth $1.
    Draw 10 big dots representing the elements of M.
    The set of production cost is comprised of 2 big dots less then the set M.
    Represent C as a subset of M and give the answer to the question:
    What is the cardinality of the set of profits?

    1980's

    A farmer sells a bag of potatoes for $10.
    His production costs are $8 and his profit is $2.
    Underline, the word "potatoes" and discuss with your classmates.

    1990's

    A farmer sells a bag of potatoes for $10.00.
    His production costs are 0.80 of his revenue.
    On your calculator graph revenue versus costs.
    Run the "POTATO" program on your computer to determine the profit.
    Discuss the result with the other students in your group.
    Write a brief essay that analyzes how this example relates to the real world of economics.

    I think this illustrates well that math education is not fixed in time. Everyone seems to think the way they learned it is the right way, and everything else is crazy. Though some approaches have shown themselves to be particularly bad ideas. Mass education is garbage in general.
     
  16. Crono7

    Crono7 GET TO THE CHOPPA

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    I did the same as well

    I dont see why this is taught though,

    seems like a lot of effort just to teach kids single digit addition, which IMO should be memorized.
     
  17. drstrangelov

    drstrangelov Hey.

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    Same. In theory it should teach kids a little more process and a little less rote memorization. But, if you're concurrently teaching the kids grammar and writing, they should be praised for noting the flaws in the way the question is written.
     
  18. Anung Un Rama

    Anung Un Rama Idol of Millions Platinum Member

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    No, they're saying because 8+5 is so difficult make a 10 out of the numbers to make it easier to finish the equation.

    8+2=10+3=13
     
  19. Like A Bas

    Like A Bas Brown Belt

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    There is more than one way to approach math. I don't care how it's done as long as it gets results, but it should be flexible enough to allow different students to use different methods. And in before somebody blames Obama for this.
     
  20. TheyAreSurfers

    TheyAreSurfers Let Me Get One Wave

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    Poorly worded question. If you're adding 8 + 5 the final product has no way of being 10. "Make a 10".... "make more specific questions".
     

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